Specifications: Material: Silica gel+ABSdiameter: 80mm3.15inch Battery: 500mAh Features: Let Your Dog Move: The remote-control ball for dogs/cats will automatically roll erratically with RGB light flashing. Adopting an advanced chip will intelligently avoid obstacles. It is a great pet birthday toy for your small/medium dog or cats to attract them to run and be healthy. Durable & Safe Material: The interactive pet ball toy features a double casing design: a hard-inner PC shell & a soft food-grade BPA-free TPU exterior shell. It's super durable, washable, odourless. Your pet will be safe & happy with it. No More Destructive Behavior: Will inspire their hunting instinct and actively chasing all around, which will consume your pet's energy and keep them occupied to stay out of trouble. You will have enough time to be free. Long Standby Li-Battery: With a full charge, the smart toys for dogs/cats can continuously accompany your pets for 5-6 hours. It will be fun to watch your pet chasing & to play with the ball or enjoy the interactive ball time with your pet. Easy to Operate: We optimized the remote controller using experience and simplified our pet ball's mode. Even if the user is a child, he will know how to use it with minutes (automatic rest 10 min after 30 min playing). Package includes: 1*Pet Toy Ball Pet Toy Ball With remote control Note: 1. The real color of the item may be slightly different from the pictures shown on the website caused by many factors such as the brightness of your monitor and light brightness. 2. Please allow slight manual measurement deviation for the date.